lwIP - A Lightweight TCP/IP stack - Bugs: bug #56437, Stack/heap corruption when sending...
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bug #56437: Stack/heap corruption when sending UDP through socket interface
Submitter: | Gideon Z <gideonz> | ||
Submitted: | Tue 04 Jun 2019 06:35:26 PM UTC | ||
Category: | UDP | Severity: | 3 - Normal |
Item Group: | Crash Error | Status: | Invalid |
Privacy: | Public | Assigned to: | None |
Open/Closed: | Closed | Planned Release: | None |
lwIP version: | 1.4.1 |
Tue 04 Jun 2019 09:14:47 PM UTC, comment #2: |
Gideon Z <gideonz> |
Tue 04 Jun 2019 07:15:00 PM UTC, comment #1: I think there's only one problem: you're using a modified stack. I can't find that comment nor the code in our released sources.
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Simon Goldschmidt <goldsimon> |
Tue 04 Jun 2019 06:35:26 PM UTC, original submission:
When using lwIP through its socket interface, stack or heap corruption occurs when the parameter LWIP_NETIF_TX_SINGLE_PBUF is set to 0, and the user application tries to send a UDP packet.
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Gideon Z <gideonz> |
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Follow 2 latest changes.
Date | Changed by | Updated Field | Previous Value | => | Replaced by |
---|---|---|---|---|---|
2019-06-04 | goldsimon | Status | None | Invalid | |
Open/Closed | Open | Closed |
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Corresponding source code
Thank you for your reply. I apologize. You are absolutely right about me using a modified stack. It has been 5 years since I made this [horrible] change. I verified most code pieces with the repository, but I missed this part; probably because I was too happy that I finally found the root cause of my crash.
// The comments are C90 / C99 style.